Chapter 12 Error Code List and Special Internal Outputs

12.4 Bit Special Internal Output Area

The MICRO-EH has a special internal output area for performing status display and various other settings. The special internal output area is constantly backed up in case of power failure.

The following lists the definitions of the bit special internal output area (R7C0 to R7FF).

No.

Name

Meaning

Description

Setting

Resetting

condition

condition

 

 

 

 

R7C0

Ignore scan time

0: Stop operation

Designates continue/stop running when

 

Cleared by

 

error (normal scan)

1: Continue operation

a normal scan overload error occurs

 

user, Cleared

R7C1

Ignore scan time

0: Stop operation

Designates continue/stop running when

Set by user

when

 

error (cyclic scan)

1: Continue operation

a periodic-scan overload error occurs

 

retentive area

R7C2

Ignore scan time

0: Stop operation

Designates continue/stop running when

 

is cleared, or

 

error (interrupt scan)

1: Continue operation

an interrupt-scan overload error occurs

 

the CPU is

 

 

 

 

 

initialized.

R7C3

Undefined

Do not use.

 

 

 

R7C4

Undefined

Do not use.

 

 

 

R7C5

Undefined

Do not use.

 

 

 

R7C6

Undefined

Do not use.

 

 

 

R7C7

On line change in

0: On line changed not

Designates whether online change in

 

 

 

RUN

allowed.

RUN is allowed in user program

Set by user

 

 

 

1: On line changed

 

Cleared by

 

 

 

 

 

 

allowed.

 

 

 

 

 

 

user, Cleared

R7C8

Serious error flag

0: Normal

Indicates whether there is an abnormal

 

 

when

 

 

1: Abnormal

in the microcomputer

 

 

 

 

retentive area

 

 

 

(Address error, undefined instruction)

 

 

 

 

 

is cleared, or

R7C9

Microcomputer error

0: Normal

Indicates whether there is an abnormal

Set by the

the CPU is

 

 

1: Abnormal

in the microcomputer

system

 

 

initialized.

 

 

 

(Computation error)

 

 

 

 

 

 

R7CA

User memory error

0: Normal

Indicates whether there is an abnormal

 

 

 

 

1: Abnormal

in user memory

 

 

R7CB

Undefined

Do not use.

 

 

 

R7CC

Memory size over

0: Normal

Indicates whether the capacity set by

 

Cleared by

 

 

1: Abnormal

the parameter exceeds loaded memory

 

user, Cleared

 

 

 

capacity

Set by the

when

R7CD

I/O configuration

0: Normal

Indicates whether I/O assignment and

retentive area

system

 

error

1: Unmatched

loading are matched (Mismatched

is cleared, or

 

 

 

 

 

information output to WRF002)

 

the CPU is

 

 

 

 

 

initialized.

R7CE

Undefined

Do not use.

 

 

 

R7CF

Operation mode for

0: Hold

 

 

Cleared by

*1

instantaneous power

1: Reset (same start up operation as normal power on.)

Set by the

user, Cleared

 

failure

 

 

when retentive

 

 

 

system

area is cleared,

 

 

 

 

 

 

 

 

 

or the CPU is

 

 

 

 

 

initialized.

R7D0

Undefined

Do not use.

 

 

 

R7D1

Scan time error

0: Normal

Indicates whether the normal scan

 

 

 

(normal scan)

1: Scan time over

execution time has exceeded the

 

 

 

 

 

designated time

 

Cleared by

R7D2

Scan time error

0: Normal

Indicates whether the periodic scan was

 

user, Cleared

 

(cyclic scan)

1: Scan time over

completed within cycle time

Set by the

when

R7D3

Scan time error

0: Normal

Indicates whether an interrupt of the

retentive area

system

 

(interrupt scan)

1: Scan time over

same factor occurred during interrupt

is cleared, or

 

 

 

 

 

scan execution.

 

the CPU is

R7D4

Grammar/assemble

0: Normal

Indicates whether there is a grammar

 

initialized.

 

error

1: Error

error in user program (Detailed

 

 

 

 

 

information output to WRF001)

 

 

R7D5

Blown fuse detection

0: Normal

Indicates whether or not a fuse

 

 

 

 

1: Error

connected to the second pin (see

Set by the

Cleared by

 

 

 

Chapter 11) of serial port 1 has blown

system

the system

 

 

 

out.

 

 

R7D6

Undefined

Do not use.

 

 

 

*1: Supported by software version 1.11 (WRF051=H0111) or newer.

12-5

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Hitachi NJI-350B Bit Special Internal Output Area, Name Meaning Description Setting Resetting Condition, R7CB, R7CE, 12-5